CN104279196A - Supercharging system of hydraulic machine - Google Patents
Supercharging system of hydraulic machine Download PDFInfo
- Publication number
- CN104279196A CN104279196A CN201410513450.0A CN201410513450A CN104279196A CN 104279196 A CN104279196 A CN 104279196A CN 201410513450 A CN201410513450 A CN 201410513450A CN 104279196 A CN104279196 A CN 104279196A
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- CN
- China
- Prior art keywords
- oil
- working
- hydraulic
- electromagnetic valve
- fuel tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The invention discloses a supercharging system of a hydraulic machine and belongs to the technical field of hydraulic machines. The supercharging system mainly comprises an operating hydraulic cylinder, a supercharging cylinder, an oil pump and other corresponding control components. The supercharging system is characterized in that electromagnetic valves are arranged in the hydraulic system so as to realize supercharging of the supercharging cylinder. The supercharging system has the advantages of simplicity in structure, reliability in operation and low fault rate.
Description
Technical field
The present invention relates to hydraulic work system, be specifically related to a kind of hydraulic press pressurization system, belong to hydraulic press technical field.
Background technique
In the hydraulic system of hydraulic machinery, in order to utilize less pressure fuel pump, obtaining the working pressure that hydraulic cylinder for working is larger, often becoming to have the pressurization system of function of increasing pressure by design of Hydraulic System.Although existing hydraulic press pressurization system is not quite similar in concrete structure, but be generally all that pressurized cylinder is set in hydraulic system, the work of pressurized cylinder is by realizing supercharging object with opening of the booster cavity of pressurized cylinder and the Pilot operated check valve of pressure chamber with closing, but, because the work of Pilot operated check valve need arrange auxiliary oil circuit control, thus, cause whole hydraulic system comparatively complicated, especially: Pilot operated check valve is easily by the impact of Oil Quality, often easily be not closed completely, open thorough or not stuck phenomenon, so, easily break down, cause hydraulic press work abnormal or cannot work at all.
Summary of the invention
The object of the invention is: for the above-mentioned defect existing for existing hydraulic press pressurization system, the invention provides a kind of novel hydraulic press pressurization system, overcomes the above-mentioned defect existing for existing hydraulic press pressurization system.
The technological scheme that the present invention is adopted for achieving the above object is: described a kind of hydraulic press pressurization system, it is mainly by hydraulic cylinder for working, pressurized cylinder, electromagnetic valve first, auxiliary oil feeding reservoir, electromagnetic valve second, relief valve, oil pump, two-bit triplet solenoid valve, fuel tank, position limit switch, collision block, electromagnetic valve third, oil purifier formed, it is characterized in that: two oil outlets of two-bit triplet solenoid valve are connected with the active chamber of oil pipe and hydraulic cylinder for working and rod end chamber respectively, the return opening oil pipe of two-bit triplet solenoid valve directly communicates with fuel tank, the oil outlet oil pipe of oil pump is connected with the filler opening of two-bit triplet solenoid valve, the filler opening of oil pump is connected with fuel tank through oil purifier, the booster cavity oil pipe of pressurized cylinder is connected with the active chamber of hydraulic cylinder for working, the pressure chamber of pressurized cylinder is connected with the oil outlet of oil pump through the entrance end of electromagnetic valve second, the entrance point of relief valve and outlet end are connected with the oil outlet end of oil pipe and oil pump and fuel tank respectively, two port oil pipes of solenoid valve third are connected with the rod end chamber of hydraulic cylinder for working and the inside of fuel tank respectively, at the upper position higher than pressurized cylinder, an auxiliary oil feeding reservoir is installed, auxiliary oil feeding reservoir oil pipe is imported and exported through the two ends of electromagnetic valve first and is connected with the pressure chamber of pressurized cylinder, the piston rod of hydraulic cylinder for working is installed and fixes a collision block, collision block process side, path install fix a position limit switch.
Beneficial effect: in the technical program, because supercharging work has mainly been controlled by electromagnetic valve, because the control of solenoid valve depends on electric system, do not rely on hydraulic system, meanwhile, solenoid valve has reliable operation, the advantage be active in one's movements, so it is simple that the present invention has system, the advantage reliable, rate of fault is lower.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention;
Shown in figure: 1, hydraulic cylinder for working; 2, pressurized cylinder; 3, electromagnetic valve first; 4, auxiliary oil feeding reservoir; 5, electromagnetic valve second; 6, relief valve; 7, oil pump; 8, two-bit triplet solenoid valve; 9, fuel tank; 10, position limit switch; 11, collision block; 12, electromagnetic valve third; 13, oil purifier.
Embodiment
Composition graphs 1, the specific embodiment of the present invention is:
Described a kind of hydraulic press pressurization system, it is mainly by hydraulic cylinder for working (1), pressurized cylinder (2), electromagnetic valve first (3), auxiliary oil feeding reservoir (4), electromagnetic valve second (5), relief valve (6), oil pump (7), two-bit triplet solenoid valve (8), fuel tank (9), position limit switch (10), collision block (11), electromagnetic valve third (12), oil purifier (13) formed, it is characterized in that: two oil outlets of two-bit triplet solenoid valve (8) use the active chamber of oil pipe and hydraulic cylinder for working (1) and rod end chamber to be connected respectively, the return opening oil pipe of two-bit triplet solenoid valve (8) directly communicates with fuel tank (9), the oil outlet oil pipe of oil pump (7) is connected with the filler opening of two-bit triplet solenoid valve (8), the filler opening of oil pump (7) is connected with fuel tank (9) through oil purifier (13), the booster cavity oil pipe of pressurized cylinder (2) is connected with the active chamber of hydraulic cylinder for working (1), the pressure chamber of pressurized cylinder (2) is connected with the oil outlet of oil pump (7) through the entrance end of electromagnetic valve second (5), entrance point and the outlet end of relief valve (6) use the oil outlet end of oil pipe and oil pump (7) and fuel tank (9) to be connected respectively, two port oil pipes of solenoid valve third (12) are connected with the rod end chamber of hydraulic cylinder for working (1) and the inside of fuel tank (9) respectively, at the upper position higher than pressurized cylinder (2), an auxiliary oil feeding reservoir (4) is installed, with oil pipe, through the two ends of electromagnetic valve first (3), import and export are connected with the pressure chamber of pressurized cylinder (2) auxiliary oil feeding reservoir (4), the piston rod of hydraulic cylinder for working (1) is installed and fixes a collision block (11), collision block (11) process side, path install fix a position limit switch (10).
Of the present inventionly as principle be: when starting working, under the effect of electrical apparatus control system, two-bit triplet solenoid valve (8) enters working state, the active chamber of hydraulic cylinder for working (1) and the booster cavity of pressurized cylinder (2) will be injected from the pressure oil of oil pump (7), now, electromagnetic valve first (3) is in open mode, electromagnetic valve second (5) and electromagnetic valve third (12) are then in the state of closedown, then the fluid in hydraulic cylinder for working (1) inner piston rod chamber flows back to fuel tank through two-position three way magnetic valve (8), fluid in pressure chamber in pressurized cylinder (2) flows back to auxiliary oil feeding reservoir (4) through electromagnetic valve first (3), when after the above-mentioned action executing regular hour, the piston rod of hydraulic cylinder for working (1) also goes downwards to corresponding distance, now, the collision block (11) be arranged on hydraulic cylinder for working (1) piston rod triggers position limit switch (10), position limit switch (10) sends control signal, two-bit triplet solenoid valve (8) cuts out, shut electromagnetic valve door first (3) simultaneously, and open electromagnetic valve second (5) and electromagnetic valve third (12), so: the pressure chamber entering pressurized cylinder (3) from the pressure oil of oil pump (7) through electromagnetic valve second (5), thus realize the object of supercharging, and at this moment, fluid in the rod end chamber of hydraulic cylinder for working (1) flows back to fuel tank (9) through the electromagnetic valve third (12) opened, after supercharging work completes, under the control of electrical apparatus control system, the spool of two-bit triplet solenoid valve (8) turns to, simultaneously, electromagnetic valve first (3) is opened, and electromagnetic valve second (5) and electromagnetic valve third (12) are closed, then: the hydraulic oil from oil pump (7) passes through the rod end chamber that the two-bit triplet solenoid valve (8) turned to enters hydraulic cylinder for working (1), and the hydraulic oil part in the active chamber of hydraulic cylinder for working (1) enters the booster cavity of pressurized cylinder (2), all the other flow back to fuel tank (9) through two-bit triplet solenoid valve (8), simultaneously, hydraulic oil in pressurized cylinder (2) pressure chamber flows to auxiliary oil feeding reservoir (4) through electromagnetic valve first (3), thus complete a work cycle.
Claims (4)
1. a hydraulic press pressurization system, it is mainly by hydraulic cylinder for working (1), pressurized cylinder (2), electromagnetic valve first (3), auxiliary oil feeding reservoir (4), electromagnetic valve second (5), relief valve (6), oil pump (7), two-bit triplet solenoid valve (8), fuel tank (9), position limit switch (10), collision block (11), electromagnetic valve third (12), oil purifier (13) formed, it is characterized in that: two oil outlets of two-bit triplet solenoid valve (8) use the active chamber of oil pipe and hydraulic cylinder for working (1) and rod end chamber to be connected respectively, the return opening oil pipe of two-bit triplet solenoid valve (1) directly communicates with fuel tank (9), the oil outlet oil pipe of oil pump (7) is connected with the filler opening of two-bit triplet solenoid valve (8), the filler opening of oil pump (7) is connected with fuel tank (9) through oil purifier (13), the booster cavity oil pipe of pressurized cylinder (2) is connected with the active chamber of hydraulic cylinder for working (1), the pressure chamber of pressurized cylinder (2) is connected with the oil outlet of oil pump (7) through the entrance end of electromagnetic valve second (5), and entrance point and the outlet end of relief valve (6) use the oil outlet end of oil pipe and oil pump (7) and fuel tank (9) to be connected respectively.
2. according to claim 1, described a kind of hydraulic press pressurization system, is characterized in that: two port oil pipes of solenoid valve third (12) are connected with the rod end chamber of hydraulic cylinder for working (1) and the inside of fuel tank (9) respectively.
3. according to claim 1, described a kind of hydraulic press pressurization system, it is characterized in that: install an auxiliary oil feeding reservoir (4) at the upper position higher than pressurized cylinder (2), with oil pipe, through the two ends of electromagnetic valve first (3), import and export are connected with the pressure chamber of pressurized cylinder (2) auxiliary oil feeding reservoir (4).
4., according to claim 1, described a kind of hydraulic press pressurization system, is characterized in that: on the piston rod of hydraulic cylinder for working (1) install fix a collision block (11), collision block (11) process side, path install fix a position limit switch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513450.0A CN104279196A (en) | 2014-09-29 | 2014-09-29 | Supercharging system of hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513450.0A CN104279196A (en) | 2014-09-29 | 2014-09-29 | Supercharging system of hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104279196A true CN104279196A (en) | 2015-01-14 |
Family
ID=52254420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410513450.0A Pending CN104279196A (en) | 2014-09-29 | 2014-09-29 | Supercharging system of hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104279196A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2175352A (en) * | 1985-05-14 | 1986-11-26 | Coal Ind | Hydraulic pulseless supply means |
| US4924671A (en) * | 1986-11-25 | 1990-05-15 | Mannesmann Rexroth Gmbh | Controlled series high-pressure intensifiers for hydraulic press cylinded circuit |
| CN201144909Y (en) * | 2007-12-29 | 2008-11-05 | 江苏国力锻压机床有限公司 | Hydraulic control system of hydraulic machine |
| CN201908897U (en) * | 2010-12-30 | 2011-07-27 | 成都豪能科技股份有限公司 | Hydraulic pulse pressing system |
| CN102192859A (en) * | 2011-04-02 | 2011-09-21 | 常州大学 | Pressure container corrosion fatigue testing device with closed-loop control |
| CN102507165A (en) * | 2011-10-14 | 2012-06-20 | 安徽博一流体传动股份有限公司 | Hydraulic element service life tester |
| CN103862705A (en) * | 2012-12-12 | 2014-06-18 | 佳木斯骥驰拖拉机制造有限公司 | Liquid-gas conversion supercharging device of numerical control turret punch |
| CN204140522U (en) * | 2014-09-29 | 2015-02-04 | 苏州蓝王机床工具科技有限公司 | A kind of hydraulic press pressurization system |
-
2014
- 2014-09-29 CN CN201410513450.0A patent/CN104279196A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2175352A (en) * | 1985-05-14 | 1986-11-26 | Coal Ind | Hydraulic pulseless supply means |
| US4924671A (en) * | 1986-11-25 | 1990-05-15 | Mannesmann Rexroth Gmbh | Controlled series high-pressure intensifiers for hydraulic press cylinded circuit |
| CN201144909Y (en) * | 2007-12-29 | 2008-11-05 | 江苏国力锻压机床有限公司 | Hydraulic control system of hydraulic machine |
| CN201908897U (en) * | 2010-12-30 | 2011-07-27 | 成都豪能科技股份有限公司 | Hydraulic pulse pressing system |
| CN102192859A (en) * | 2011-04-02 | 2011-09-21 | 常州大学 | Pressure container corrosion fatigue testing device with closed-loop control |
| CN102507165A (en) * | 2011-10-14 | 2012-06-20 | 安徽博一流体传动股份有限公司 | Hydraulic element service life tester |
| CN103862705A (en) * | 2012-12-12 | 2014-06-18 | 佳木斯骥驰拖拉机制造有限公司 | Liquid-gas conversion supercharging device of numerical control turret punch |
| CN204140522U (en) * | 2014-09-29 | 2015-02-04 | 苏州蓝王机床工具科技有限公司 | A kind of hydraulic press pressurization system |
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Application publication date: 20150114 |